# -*- coding: utf-8 -*-
from __future__ import unicode_literals

import datetime

from django.shortcuts import render

from apps.food.models import Menu, HappyHour, SingleFood, UserRating
from django.http import HttpResponse
from rest_framework import viewsets, generics
from rest_framework import status
from rest_framework.decorators import api_view
from rest_framework.response import Response
from apps.food.serializers import MenuSerializer, SingleFoodSerializer


# Create your views here.
def daily_food(request):
    today = datetime.datetime.now()
    feki_menu = Menu.objects.filter(date__exact=today).filter(location__contains="Feldkirchenstraße").last()
    austr_menu = Menu.objects.filter(date__exact=today).filter(location__contains="Austraße").last()
    erba_cafete = Menu.objects.filter(date__exact=today).filter(location__contains="Erba").last()
    markus_cafete = Menu.objects.filter(date__exact=today).filter(location__contains="markus").last()
    happy_hours = HappyHour.objects.filter(date__exact=today)

    return render(request, "food/daily_food.jinja", {
        'day': today,
        'happy_hours': happy_hours,
        'feki_menu': feki_menu,
        'austr_menu': austr_menu,
        'erba_cafete': erba_cafete,
        'markus_cafete': markus_cafete,
    })


def weekly_food(request):
    today = datetime.datetime.now()
    lastday = today + datetime.timedelta(7)
    weekly_menus = Menu.objects.filter(date__gte=today, date__lte=lastday)
    feki_menu = weekly_menus.filter(location__contains="Feldkirchenstraße")
    austr_menu = weekly_menus.filter(location__contains="Austraße")
    erba_cafete = weekly_menus.filter(location__contains="Erba")
    markus_cafete = weekly_menus.filter(location__contains="markus")
    happy_hours = HappyHour.objects.filter(date__gte=today, date__lte=lastday)
    return render(request, "food/weekly_food.jinja", {
        'day': today,
        'lastday': lastday,
        'happy_hours': happy_hours,
        'feki_menu': feki_menu,
        'austr_menu': austr_menu,
        'erba_cafete': erba_cafete,
        'markus_cafete': markus_cafete,
    })


def food_detail(request, id):
    food = SingleFood.objects.get(id=id)
    return render(request, "food/detailed_food.jinja", {'food': food})


def all_food(request):
    menus = Menu.objects.all()
    feki_menu = menus.filter(location__contains="Feldkirchenstraße")
    austr_menu = menus.filter(location__contains="Austraße")
    erba_cafete = menus.filter(location__contains="Erba")
    markus_cafete = menus.filter(location__contains="markus")
    happy_hours = HappyHour.objects.all()
    return render(request, "food/daily_food.jinja", {
        'happy_hours': happy_hours,
        'feki_menu': feki_menu,
        'austr_menu': austr_menu,
        'erba_cafete': erba_cafete,
        'markus_cafete': markus_cafete,
    })


def food(request):
    return render(request, "food/home.jinja", {
    })


def food_rating(request):
    if (request.user.is_authenticated):
        food_id = request.GET.get('food_id', None)
        rating = request.GET.get('rating', None)
        if food_id and rating:
            food = SingleFood.objects.get(id=food_id)
            user_rating, created = UserRating.objects.get_or_create(user=request.user,
                                                                    food=food)
            user_rating.rating = rating
            user_rating.save()

            food_user_ratings = UserRating.objects.all().filter(food=food)
            sum = 0
            for food_user_rating in food_user_ratings:
                sum += food_user_rating.rating

            food.rating = sum / food_user_ratings.count()
            food.save()
            return HttpResponse(status=200)
        return HttpResponse(status=404)

    return HttpResponse(status=403)


def food_image(request):
    food_id = request.GET.get('food_id', None)
    img = request.GET.get('img', None)
    if food_id and img:
        food = SingleFood.objects.get(id=food_id)
        food.image = img
        food.save()
        return HttpResponse(status=200)

    return HttpResponse(status=404)


@api_view(['GET'])
def serialize_daily_food(request, location="", year="", month="", day=""):
    request_date = datetime.datetime.strptime((year + "-" + month + "-" + day), "%Y-%m-%d")
    queryset = Menu.objects.filter(location__contains=location).filter(date__exact=request_date)
    serializer = MenuSerializer(queryset)
    return Response(serializer)


class FoodViewSet(viewsets.ModelViewSet):
    """
    API endpoint that allows users to be viewed or edited.
    """
    queryset = Menu.objects.all()
    serializer_class = MenuSerializer


class FoodList(generics.ListAPIView):
    serializer_class = MenuSerializer

    def get_queryset(self):
        """
        This view should return a list of all the purchases for
        the user as determined by the username portion of the URL.
        """
        if 'location' in self.kwargs:
            location = self.kwargs['location']
        else:
            location = ""

        if 'year' in self.kwargs and 'month' in self.kwargs and 'day' in self.kwargs:
            request_date = datetime.datetime.strptime(
                (self.kwargs['year'] + "-" + self.kwargs['month'] + "-" + self.kwargs['day']), "%Y-%m-%d")
        else:
            request_date = datetime.datetime.now()
        print("LOCATION: " + location)
        print("DATE: " + str(request_date))
        return Menu.objects.filter(location__contains=location).filter(date__exact=request_date)